生成的密碼哈希: Email: admin@example.com Password: admin123 Hash: $2y$10$9A/64MK9s8rLkYdQVlWsXe.ZEwwn8WMPGGFp4HBxO0.9VNqG/XAQy Email: teacher@example.com Password: teacher123 Hash: $2y$10$h4SkK4ULBwiN7wXHHfFQ2edTC49HscZuqbmHLr76yg.yUs8PsjlkW Email: student@example.com Password: student123 Hash: $2y$10$NW85iHmE5zy19lbOmj8rGeZeYwp3kyGAUZyKiSifoUILMQ4IuX24m